About your Search

20121027
20121104
Search Results 0 to 0 of about 1
-section, the frictional resistance is the minimum, so the water loses very little energy flowing over the channel. if it's a wide, flat channel, a fairly shallow river, there's a greater surface area along the banks and the bottom, and that slows the stream down, too. the texture of a stream bed also influences stream velocity. roughness is a function of the materials over which it flows, so if it's flowing over gravel and boulders, there's more resistance to the flow. that slows the river. if it's flowing over muds and clays, like along the lower mississippi river, there's less resistance, and it flows a little faster. the velocity of a river also tends to increase if the amount of water in the river channel increases. the quantity of water moving through a river is called its discharge. the discharge of a river is how much water it's actually carrying. we usually measure this as a volume per unit time. the united states commonly says cubic feet per second. most of the world uses cubic meters per second moving down the channel. discharge increases from the head of the stream to the stream mouth as the
Search Results 0 to 0 of about 1